Spanish Conditional Tense: Full Guide to Forms and Uses

Key takeaways

• The Spanish conditional tense expresses what would happen, what someone would do, or what would be the case under certain conditions.
• It is formed by adding one set of endings (-ía, -ías, -ía, -íamos, -íais, -ían) to the full infinitive of the verb, making it one of the most consistent tenses to learn.
• Twelve common verbs have irregular conditional stems (the same twelve that are irregular in the future tense): tener → tendría, hacer → haría, poder → podría, saber → sabría, and others.
• The conditional is paired with the imperfect subjunctive in hypothetical si clauses: Si tuviera más tiempo, viajaría más (If I had more time, I would travel more).

The Spanish conditional handles three jobs learners often encounter separately: expressing what would happen under certain conditions, making direct requests sound polite, and reporting what someone said would occur in the future. Most learners meet it for one purpose and later discover the others.

This guide covers what the conditional expresses, how to form it for regular and irregular verbs, all three main uses with real examples, and how it pairs with the imperfect subjunctive in hypothetical si clauses.

italki, operating since 2007 with 10M+ learners, connects Spanish learners with teachers who work on the register and conversational fluency that makes the conditional feel natural rather than retrieved. A Spanish tutor can run polite request scenarios in real time, which is where this tense earns its value in everyday Spanish.

What the conditional tense expresses

The conditional answers the question “what would happen?” It operates at one remove from reality, describing outcomes that depend on a condition, softened possibilities, or what was expected from a past perspective.

English signals the conditional with “would”: “I would call,” “he would arrive,” “they would know.” Spanish uses a single conditional verb form rather than a helper verb.

Situation	Spanish conditional	English
Hypothetical	Hablaría con él si tuviera la oportunidad.	I would talk to him if I had the opportunity.
Polite request	¿Podría ayudarme?	Could you help me?
Reported speech	Dijo que llamaría a las ocho.	He said he would call at eight.
Speculation about the past	Tendría unos cuarenta años.	He must have been about forty (was probably around forty).

The last use, using the conditional to speculate about past situations, does not exist in English with “would” but is common in Spanish: ¿Dónde estaría cuando ocurrió? (Where might he have been when it happened? / Where was he, I wonder?).

How to form the conditional: regular verbs

The conditional is unusually consistent: all verbs, regardless of their -ar, -er, or -ir ending, use the full infinitive as the stem. Then one set of endings attaches to that stem.

Conditional endings (same for all verbs):

Person	Ending
yo	-ía
tú	-ías
él / ella / usted	-ía
nosotros	-íamos
vosotros	-íais
ellos / ellas / ustedes	-ían

-AR verb: hablar (to speak)

Person	Conditional
yo	hablaría
tú	hablarías
él / ella / usted	hablaría
nosotros	hablaríamos
vosotros	hablaríais
ellos / ustedes	hablarían

-ER verb: comer (to eat)

Person	Conditional
yo	comería
tú	comerías
él / ella / usted	comería
nosotros	comeríamos
vosotros	comeríais
ellos / ustedes	comerían

-IR verb: vivir (to live)

Person	Conditional
yo	viviría
tú	vivirías
él / ella / usted	viviría
nosotros	viviríamos
vosotros	viviríais
ellos / ustedes	vivirían

All three conjugate identically in structure. Only the stem (the infinitive) differs. This makes the conditional much easier to learn than the preterite, which has different irregular stems for dozens of common verbs.

Irregular conditional verbs

Twelve common verbs use a modified stem in the conditional (and in the future tense, the same twelve verbs are irregular in both). The endings remain the same.

Group 1, Dropped vowel:

Infinitive	Conditional stem	yo form
haber	habr-	habría
poder (to be able)	podr-	podría
querer (to want)	querr-	querría
saber (to know)	sabr-	sabría

Group 2, Dropped vowel + consonant change:

Infinitive	Conditional stem	yo form
tener (to have)	tendr-	tendría
poner (to put)	pondr-	pondría
venir (to come)	vendr-	vendría
salir (to leave)	saldr-	saldría
valer (to be worth)	valdr-	valdría

Group 3, Replaced infinitive ending:

Infinitive	Conditional stem	yo form
decir (to say)	dir-	diría
hacer (to do/make)	har-	haría

Poder, tener, querer, and hacer are the four most urgent to know, they appear constantly in polite requests and hypotheticals. Practice them in context with a Spanish tutor before moving to the full list.

Use 1: expressing hypotheticals

The most recognizable use of the conditional is in hypothetical sentences, describing what would happen if a condition were met.

Spanish	English
Comería más si tuviera hambre.	I would eat more if I were hungry.
¿Dónde vivirías si pudieras elegir?	Where would you live if you could choose?
Sin tu ayuda, no lo habría conseguido.	Without your help, I wouldn’t have managed it.
Lo haría, pero no tengo tiempo.	I would do it, but I don’t have time.

The condition does not always appear explicitly. Lo haría (I would do it) implies an unstated condition without making it grammatically visible.

Use 2: polite requests and suggestions

The conditional softens direct commands and requests into polite questions. This is one of its most practical everyday uses.

Direct (present indicative)	Polite (conditional)
¿Puede hablar más despacio?	¿Podría hablar más despacio? (Could you speak more slowly?)
¿Me trae la cuenta?	¿Me traería la cuenta? (Would you bring me the bill?)
Quiero reservar una mesa.	Querría reservar una mesa. (I would like to reserve a table.)

Podría, querría, debería, me gustaría, and ¿le importaría? (Would you mind…?) are the conditional forms that come up most in real-life service interactions, formal emails, and professional Spanish.

Compare the social weight of each register in a work context:

• Necesito que lo envíes hoy., direct, close to a command
• ¿Podrías enviarlo hoy?, polite but direct
• ¿Le importaría enviarlo hoy si tiene tiempo?, deferential, formal

Choosing the right level of directness in professional or formal contexts is subtle, and it is exactly the kind of register calibration that benefits from real-time conversation with a Spanish teacher rather than textbook exercises.

Use 3: reported speech and future-in-the-past

When reporting what someone said would happen at a future point, Spanish uses the conditional where English uses “would.”

What was said (present or future)	Reported speech (past reference)
“Llegaré a las diez.” (I will arrive at ten.)	Dijo que llegaría a las diez. (He said he would arrive at ten.)
“Te llamaré.” (I’ll call you.)	Prometió que llamaría. (She promised she would call.)
“Habrá descuentos.” (There will be discounts.)	Anunciaron que habría descuentos. (They announced there would be discounts.)

This pattern is called the “future-in-the-past”, the original statement was about the future, but it is now being reported from a past reference point. Spanish switches the future tense to the conditional in this context.

Conditional vs. imperfect subjunctive in si clauses

The conditional and imperfect subjunctive work together in hypothetical si clauses, one of the most important multi-tense structures in Spanish.

The pattern:

Si + [imperfect subjunctive], [conditional]

Si clause (imperfect subjunctive)	Result clause (conditional)
Si tuviera más tiempo,	aprendería a tocar la guitarra.
Si hablara español perfectamente,	trabajaría en Barcelona.
Si fuera rico,	donaría a obras benéficas.
Si pudiera elegir,	viviría en la costa.

One critical rule: never put the conditional in the si clause.

Wrong	Correct
Si tendría tiempo…	Si tuviera tiempo…
Si podría ayudarte…	Si pudiera ayudarte…

The si clause always uses the imperfect subjunctive (for hypotheticals about the present/future) or the pluperfect subjunctive (for past hypotheticals). The conditional goes in the result clause, what would happen.

For past hypotheticals (what would have happened), use habría + past participle in the result clause: Si hubiera estudiado más, habría aprobado el examen (If I had studied more, I would have passed the exam).

Putting the conditional into real Spanish

Conjugation tables are the starting point, not the finish line. The conditional only becomes useful when podría, querría, and me gustaría come out automatically in a restaurant, a meeting, or a conversation with a native speaker. That takes practice in real exchanges, not just recognition from a chart.

italki has connected 10M+ learners with Spanish teachers since 2007. A Spanish tutor can run polite request and hypothetical scenarios in real time, correct the conditional forms that keep defaulting to the present, and push learner output past the forms they feel safe with into the ones that require the conditional. Book a trial lesson and open with a scenario: ask your tutor if they would help you with something, using ¿podría…? or ¿le importaría…?

FAQ

What are the conditional tense endings in Spanish?

All verbs (regular and irregular) use the same endings: -ía, -ías, -ía, -íamos, -íais, -ían. For regular verbs, these endings attach directly to the full infinitive.

How many irregular conditional verbs are there?

Twelve common verbs have irregular stems: haber, poder, querer, saber, tener, poner, venir, salir, valer, decir, hacer, and caber. The same twelve verbs are irregular in the future tense.

What is the difference between the conditional and the imperfect tense?

The imperfect describes what used to happen or what was happening in the past. The conditional describes what would happen (under a condition). Siempre comía a las dos (I always used to eat at two, imperfect) vs Comería más tarde si pudiera (I would eat later if I could, conditional).

Can the conditional appear in a si clause?

No. The si clause in a hypothetical sentence uses the imperfect subjunctive, not the conditional. The conditional belongs in the result clause. Si tuviera dinero, lo compraría, not si tendría dinero.

How do you express “I would like” politely in Spanish?

Me gustaría (I would like) and Querría (I would like/want) are the most natural polite forms. Me gustaría reservar una mesa (I would like to reserve a table) is the standard polite request form in service contexts.